TWM516601U - Heating and curing apparatus - Google Patents

Abstract

A heating and curing apparatus for heating and curing a material layer to be cured is provided. The curing and heating apparatus includes a heating light source and a curing light source. The heating light source is configured to provide a first light beam and a first irradiation region is defined by an irradiation of the first light beam. The curing light source is configured to provide a second light beam and a second irradiated region is defined by an irradiation of the second light beam. A wavelength of the second light beam is different from a wavelength of the first light beam. With respect to the material layer to be cured, heating efficiency of the second light beam is greater than that of the second light beam.

Description

Heating fixture

The present invention relates to a heating fixture, and more particularly to a heating fixture using a fixed light source and a heating source.

UV curable resins are widely used in the industry due to their high reaction speed and high crosslink density. However, during the curing process, when the curing effect of the layer of the material to be cured reaches a critical point, the heat treatment effect thereof often does not reach the critical point, and the adhesion between the resin layer to be cured and the film to which it is cured tends to be poor, thereby leading to curing of the resin. The layer is easy to fall off.

Therefore, how to improve the curing efficiency and avoid the problem of poor adhesion between the cured resin layer and the film it is in has become one of the important topics developed by the skilled person in this field.

The novel creation provides a heating fixture with good curing effect.

The novel heating fixture is adapted to heat and fix one of the objects The layer of material to be cured. The heating fixture includes a heating source and a fixing source. The heating source is used to provide a first beam, and the illumination range of the first beam is defined as a first illumination area. The fixed light source is used to provide a second light beam, wherein the illumination range of the second light beam is defined as a second illumination area. The wavelength of the second light beam is different from the wavelength of the first light beam, and the heating efficiency of the second light beam for the material layer to be cured is higher than the heating efficiency of the first light beam for the material layer to be cured.

In an embodiment of the novel creation, the wavelength range of the first beam falls between 400 nm and 470 nm.

In an embodiment of the novel creation, the second light beam is an ultraviolet light beam.

In an embodiment of the present invention, the wavelength of the second beam is less than the wavelength of the first beam.

In an embodiment of the present invention, the first illumination area and the second illumination area at least partially overlap.

In an embodiment of the present invention, the first illumination area and the second illumination area are adjacent to each other.

In an embodiment of the present invention, a distance is maintained between the first illumination area and the second illumination area.

In an embodiment of the present invention, the heating source includes a plurality of light emitting diodes.

In an embodiment of the present invention, the fixed light source includes a plurality of light emitting diodes.

Based on the above, the novel heating fixture can effectively heat and cure the layer of material to be cured by heating the light source and the fixing source to further increase the adhesion between the layer of the material to be cured and other material layers, and also saves Overall working time.

The above described features and advantages of the present invention will become more apparent and understood from the following description.

50‧‧‧ objects

51‧‧‧layer of material to be cured

52‧‧‧Intermediate material layer

53‧‧‧Substrate

60‧‧‧First beam

70‧‧‧second beam

100‧‧‧heating fixture

110‧‧‧heating light source

120‧‧‧Fixed light source

RG1‧‧‧First exposure area

RG2‧‧‧second illumination area

D1‧‧‧ first direction

D‧‧‧ spacing

1 is a schematic view showing the structure of a heating fixture according to an embodiment of the present invention.

2A is a simulation diagram of curing efficiency by curing using a conventional photocuring device.

2B is a simulation diagram of curing efficiency by curing using the heating fixture of FIG. 1.

3A-3C are schematic views of different first and second illumination regions of FIG. 1.

1 is a schematic view showing the structure of a heating fixture according to an embodiment of the present invention. Referring to FIG. 1, the heating fixture 100 of the present embodiment is adapted to heat and fix a layer 51 of a material to be cured of an object 50. In this embodiment, the object to be cured 50 includes a substrate 53 and an intermediate material layer 52, wherein the intermediate material layer 52 is located. The substrate 53 is between the material layer 51 to be cured. In addition, the material used for the material layer 51 to be cured of the object to be cured 50 is, for example, a thermoplastic material, and the material of the intermediate material layer 52 is, for example, polyethylene terephthalate (PET), nylon (Nylon) or Epoxy or other suitable materials, but this new creation is not limited to this.

As shown in FIG. 1 , in the present embodiment, the heating fixture 100 includes a heating source 110 and a fixing source 120. The relative position between the fixing source 120 and the heating source 110 can be varied. For example, the fixed light source 120 and the heating light source 110 may be respectively disposed in two mutually independent regions, and the two mutually independent regions maintain a spacing or abut each other. In other possible embodiments, the fixed light source 120 and the heating source 110 can be mixed and disposed in a single area. In the embodiment, the fixed light source 120 and the heating light source 110 respectively comprise a plurality of different light emitting diodes for heating and solidifying the object 50. In detail, the heating source 110 is used to provide a first beam 60, and the fixing source 120 is used to provide a second beam 70, wherein the wavelength of the second beam 70 is different from the wavelength of the first beam 60. For example, the wavelength of the second beam 70 is smaller than the wavelength of the first beam 60, the wavelength range of the first beam 60 is, for example, between 400 nm and 470 nm, and the second beam 70 is an ultraviolet beam. The wavelength range is, for example, between 300 nm and 400 nm. It should be noted that the numerical ranges herein are for illustrative purposes only and are not intended to limit the invention.

In more detail, in the embodiment, the first light beam 60 does not have a significant curing effect on the material layer 51 to be cured, but is absorbed by the material layer 51 to be cured. The temperature at which the layer to be cured 51 is not cured can be effectively increased. Moreover, since the material layer 51 of the object 50 to be cured is made of a thermoplastic material, the viscosity thereof decreases as the temperature rises, so the adhesion strength of the material layer 51 to be cured and the intermediate material layer 52 after curing is related to the material to be cured. The temperature of layer 51 at the initial stage of curing exhibits a positive correlation characteristic. As such, by heating the light source 110 to illuminate the object 50 prior to the curing process, the layer of material to be cured 51 can be effectively preheated to further increase the adhesion between the layer of material 51 to be cured and the layer of intermediate material 52 of the object 50. 2A to 2B, further explanation will be made regarding the effects that can be achieved by the heating fixture 100.

2A is a simulation diagram of curing efficiency by curing using a conventional photocuring device. 2B is a simulation diagram of curing efficiency by curing using the heating fixture of FIG. 1. For example, as shown in FIG. 2A, since the conventional photocuring device uses a single ultraviolet light source to cure the material layer 51 of the object 50 to be cured, the heat treatment of the material layer 51 to be cured reaches a critical point when it is cured. The effect will take a long time to reach the critical point. Further, as shown in FIG. 2A, when the material layer 51 to be cured is about to be cured, the heat treatment effect has not reached the critical point, and the temperature of the material layer 51 to be cured is low at the initial stage of curing, so that it is easy to cause The adhesion of the layer to be cured material 51 to the intermediate material layer 52 is poor, which in turn causes the layer of material to be cured 51 to easily fall off.

As shown in FIG. 2B, the heating and fixing device 100 of the present embodiment first heats the material layer 51 to be cured of the object 50 by the heating light source 110, and then the layer 51 of the material to be cured of the object 50 by the fixing light source 120. Curing is carried out. Further, as shown in FIG. 2B, when the curing effect of the material layer 51 to be cured reaches a critical point, When it is cured, the heat treatment effect has also reached the critical point, and the time point for achieving the effect of the two is almost simultaneous or very short, and therefore, the temperature of the layer to be cured 51 at the initial stage of curing can be raised. Thus, the adhesion of the material layer 51 to be cured and the intermediate material layer 52 can be effectively improved. In other words, in the present embodiment, since the curing effect of the material layer 51 to be cured is not significantly different from the time point at which the heat treatment effect reaches the critical point, the problem of poor adhesion between the material layer 51 to be cured and the intermediate material layer 52 can be avoided. And can also save the overall working time.

The process of heating and solidifying the object 50 for the heating fixture 100 will be further explained below with reference to FIGS. 3A to 3C.

3A-3C are schematic views of different first and second illumination regions of FIG. 1. Referring to FIG. 1 , FIG. 3A to FIG. 3C , in the embodiment, the illumination range of the first light beam 60 emitted by the heating source 110 is defined as the first illumination area RG1 , and the second light beam 70 emitted by the fixed light source 120 is defined. The illumination range is defined as the second illumination area RG2, the first illumination area RG1 and the second illumination area RG2 are arranged along a first direction D1, and the object 50 moves along the first direction D1 to sequentially pass the first illumination area RG1 and The second irradiation area RG2. Of course, the present invention does not limit that the first illumination area RG1 and the second illumination area RG2 must be disposed along the first direction D1. In other words, the first illumination area RG1 and the second illumination area RG2 may also completely overlap or partially overlap.

In this way, the object 50 can be first transferred into the first illumination area RG1 (ie, the heating area) and heated by the first light beam 60 emitted by the heating source 110, and then the object 50 is transferred to the second illumination area RG2 (ie, cured). In the area) The second light beam 70 emitted by the light source 120 is cured. The design is such that the layer of material 51 to be cured of the object 50 is effectively heated (preheated) prior to the curing process to increase the adhesion between the layer of material 51 to be cured and the layer of intermediate material 52. In addition, in the present embodiment, since the heating source 110 of the heating fixture 100 employs two different characteristics of the LED as the heating source and the fixing source, the present invention can enhance the layer 51 and the intermediate to be cured. Adhesion between the layers of material 52.

In this embodiment, the first illumination area RG1 and the second illumination area RG2 are configured differently according to actual needs. For example, in this embodiment, the first illumination area RG1 and the second illumination area RG2 may be disposed to at least partially overlap (as shown in FIG. 3A), or the first illumination area RG1 and the second illumination area RG2 may be set. To each other (as shown in Figure 3B). In this way, it is possible to prevent the material layer 51 to be cured of the object 50 from causing a decrease in the temperature of the material layer 51 to be cured during the conveying process, thereby affecting the curing efficiency. In addition, in another embodiment not shown, the first illumination area RG1 and the second illumination area RG2 may also be disposed to completely overlap, and sequentially turn on the heating light source 110 and the fixing light source 120 in a time-controlled manner to The process of heating and solidifying the layer 51 of the material to be cured of the object 50 in this order can also reduce the temperature reduction of the material layer 51 to be cured during the process, thereby improving the curing efficiency. In another possible embodiment, as shown in FIG. 3C, a distance d between the first illumination area RG1 and the second illumination area RG2 is maintained according to actual needs.

In summary, the novel heating fixture can efficiently heat the material to be cured by heating the light source before the curing process, and further increase the adhesion between the material layer to be cured and the intermediate material layer of the object. force. In addition, this new The creation of a heating fixture saves overall working time.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the novel creation, and any person skilled in the art can make some changes without departing from the spirit and scope of the novel creation. Retouching, the scope of protection of this new creation is subject to the definition of the scope of the patent application attached.

50‧‧‧ objects

51‧‧‧layer of material to be cured

52‧‧‧Intermediate material layer

53‧‧‧Substrate

60‧‧‧First beam

70‧‧‧second beam

100‧‧‧heating fixture

110‧‧‧heating light source

120‧‧‧Fixed light source

Claims (9)

A heating fixture is adapted to heat and fix a layer of a material to be cured of an object, comprising: a heating source for providing a first beam, and an illumination range of the first beam is defined as a first illumination area And a fixed light source for providing a second light beam, wherein the heating light source and the fixed light source are disposed on a carrier, wherein an illumination range of the second light beam is defined as a second illumination area, wherein the second The wavelength of the light beam is different from the wavelength of the first light beam, and the heating efficiency of the second light beam for the material layer to be cured is higher than the heating efficiency of the first light beam for the material layer to be cured. The heating fixture of claim 1, wherein the wavelength range of the first beam falls between 400 nm and 470 nm. The heating fixture of claim 1, wherein the second light beam is an ultraviolet light beam. The heating fixture of claim 1, wherein the second beam has a wavelength less than a wavelength of the first beam. The heating fixture of claim 1, wherein the first illumination area and the second illumination area at least partially overlap. The heating fixture of claim 1, wherein the first illumination area and the second illumination area are adjacent to each other. The heating fixture of claim 1, wherein a distance is maintained between the first illumination area and the second illumination area. The heating fixture of claim 1, wherein the heating source comprises a plurality of light emitting diodes. The heating fixture of claim 1, wherein the fixing light source comprises a plurality of light emitting diodes.